French Polynesia Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Belgium was US$11 during 2021, according to the United Nations COMTRADE database on international trade. French Polynesia Exports of hydrometers, thermometers, pyrometers, barometers, hygrometers to Belgium - data, historical chart and statistics - was last updated on April of 2026.